Peripheral sealing system for pre-tensioned screens

Abstract

A system including a first screen having a first frame and a first sealing element attached to an outer perimeter of the first frame, and a second screen disposed adjacent the first screen, the second screen having a second frame and a second sealing element attached to an outer perimeter of the second frame, wherein the first sealing element and the second sealing element provide a seal between the first screen and the second screen is disclosed. Further, a method of forming a screen frame including forming a frame and attaching a sealing element to an outer perimeter of the frame is disclosed. Additionally, a shaker screen including a frame and a sealing element attached to an outer perimeter of the frame, wherein the sealing element is attached by one selected from thermal bonding and co-molding is disclosed.

1. A system of sealing shaker screens comprising:
 a first screen comprising:
 a first frame; a filtering element attached to the first frame and 
 a first sealing element attached to at least one side of an outer perimeter of the first frame; and 
 
 a second screen disposed adjacent the first screen, the second screen comprising:
 a second frame having a second side opposite the first sealing element; and 
 a second sealing element attached to the second side, 
 
 wherein the first sealing element of the first frame and a portion of the second screen interact to provide a seal between the first screen and the second screen, and 
 wherein the first sealing element comprises a core and a shell, wherein the shell comprises a thermoplastic elastomer. 
 
     
     
       2. The system of  claim 1  further comprising a first stop disposed on at least one side of the outer perimeter of the first frame. 
     
     
       3. The system of  claim 2 , wherein the first sealing element is disposed below the first stop. 
     
     
       4. The system of  claim 1 , wherein the first frame comprises at least one selected from a group consisting of stainless steel, metal alloy, plastic, and a composite material. 
     
     
       5. The system of  claim 1 , wherein the first sealing element is attached to the first frame by at least one selected from a group consisting of thermal bonding and co-molding. 
     
     
       6. The system of  claim 5 , wherein thermal bonding comprises at least one selected from a group consisting of heat staking and welding. 
     
     
       7. The system of  claim 1 , wherein the core comprises at least one selected from a gas and a foam. 
     
     
       8. The system of  claim 1 , wherein the first sealing element of the first screen contacts the second sealing element of the second screen. 
     
     
       9. The system of  claim 1 , wherein the second sealing element of the second screen contacts a portion of a shaker. 
     
     
       10. The system of  claim 1 , comprising a third sealing element attached to at least a second side of the first screen. 
     
     
       11. The system of  claim 10 , wherein the third sealing element of the first screen contacts a portion of a shaker. 
     
     
       12. A system of sealing shaker screens comprising:
 a first screen comprising:
 a first frame; a filtering element attached to the first frame and 
 a first sealing element attached to at least one side of an outer perimeter of the first frame; and 
 
 a second screen disposed adjacent the first screen, the second screen comprising:
 a second frame having a second side opposite the first sealing element; and 
 a second sealing element attached to the second side, 
 
 wherein the first sealing element of the first frame and a portion of the second screen interact to provide a seal between the first screen and the second screen, and 
 wherein the first sealing element comprises a core and a shell, wherein the core comprises at least one selected from a gas and a foam. 
 
     
     
       13. The system of  claim 12 , wherein the shell comprises a thermoplastic elastomer.